Ga+ ion irradiation-induced changes in magnetic anisotropy of a Pt/Co/Pt thin film studied by X-ray magnetic circular dichroism

被引：1

作者：

Amemiya, K. ^{[1
]}

Sakamaki, M. ^{[1
]}

Mazalski, P.

Sveklo, I.

Kurant, Z.

Maziewski, A.

Liedke, M. O.

Fassbender, J.

Wawro, A.

Baczewski, L. T.

机构：

[1] High Energy Accelerator Res Org, Inst Mat Struct Sci, Photon Factory & Condensed Matter Res Ctr, Tsukuba, Ibaraki 3050801, Japan

来源：

JEMS 2012 - JOINT EUROPEAN MAGNETIC SYMPOSIA | 2012年 / 40卷

关键词：

CO/PT MULTILAYERS; ORBITAL-MOMENT;

D O I：

10.1051/epjconf/20134008002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ga+ ion irradiation-induced changes in magnetic anisotropy of a Pt/Co/Pt ultrathin film are investigated by means of the X-ray magnetic circular dichroism (XMCD) technique. A large difference in the Co orbital moment is observed between out-of-plane and in-plane directions of the film at moderate Ga+ fluences of similar to 1-2x10(14) ions/cm(2), which corresponds to the perpendicular magnetic anisotropy (PMA), while further increased fluences reduce the orbital moment difference, resulting in in-plane magnetization. In contrast, at much higher Ga+ fluences of similar to 5x10(15) ions/cm(2), at which PMA is observed again, no significant difference is found in the orbital moment of Co between out-of-plane and in-plane directions. Different origins are thus suggested for the appearance of PMA induced by the irradiation between moderate and high Ga+ fluences.

引用

页数：3

共 18 条

[11] Perpendicular magnetic anisotropy caused by interfacial hybridization via enhanced orbital moment in Co/Pt multilayers: Magnetic circular x-ray dichroism study [J].

Nakajima, N ;

Koide, T ;

Shidara, T ;

Miyauchi, H ;

Fukutani, I ;

Fujimori, A ;

Iio, K ;

Katayama, T ;

Nyvlt, M ;

Suzuki, Y .

PHYSICAL REVIEW LETTERS, 1998, 81 (23) :5229-5232

[12] Characterization of the magnetic modification of Co/Pt multilayer films by He+, Ar+, and Ga+ ion irradiation [J].

Rettner, CT ;

Anders, S ;

Baglin, JEE ;

Thomson, T ;

Terris, BD .

APPLIED PHYSICS LETTERS, 2002, 80 (02) :279-281

[13] Perpendicular magnetic anisotropy in a Pt/Co/Pt ultrathin film arising from a lattice distortion induced by ion irradiation [J].

Sakamaki, M. ;

Amemiya, K. ;

Liedke, M. O. ;

Fassbender, J. ;

Mazalski, P. ;

Sveklo, I. ;

Maziewski, A. .

PHYSICAL REVIEW B, 2012, 86 (02)

[14] Tailoring magnetism in CoNi films with perpendicular anisotropy by ion irradiation [J].

Stanescu, D. ;

Ravelosona, D. ;

Mathet, V. ;

Chappert, C. ;

Samson, Y. ;

Beigne, C. ;

Vernier, N. ;

Ferre, J. ;

Gierak, J. ;

Bouhris, E. ;

Fullerton, E. E. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)

[15] Exploring the microscopic origin of magnetic anisotropies with X-ray magnetic circular dichroism (XMCD) spectroscopy [J].

Stöhr, J .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :470-497

[16] DETERMINATION OF SPIN-MOMENT AND ORBITAL-MOMENT ANISOTROPIES IN TRANSITION-METALS BY ANGLE-DEPENDENT X-RAY MAGNETIC CIRCULAR-DICHROISM [J].

STOHR, J ;

KONIG, H .

PHYSICAL REVIEW LETTERS, 1995, 75 (20) :3748-3751

[17] X-RAY CIRCULAR-DICHROISM AS A PROBE OF ORBITAL MAGNETIZATION [J].

THOLE, BT ;

CARRA, P ;

SETTE, F ;

VANDERLAAN, G .

PHYSICAL REVIEW LETTERS, 1992, 68 (12) :1943-1946

[18] Modifications of magnetic properties of Pt/Co/Pt thin layers by focused gallium ion beam irradiation [J].

Vieu, C ;

Gierak, J ;

Launois, H ;

Aign, T ;

Meyer, P ;

Jamet, JP ;

Ferré, J ;

Chappert, C ;

Devolder, T ;

Mathet, V ;

Bernas, H .

JOURNAL OF APPLIED PHYSICS, 2002, 91 (05) :3103-3110

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